Set of composite molded surprise pistons for 2 shock absorbers with eight 1.3mm holes & two 1.2mm holes. Two-way flow shock pistons work in various ways after the piston travels up or down. Using the synthetic valve arranged inside piston, 2 holes are closed when piston travels up
appropriate the piston travels down, the valve starts 2 additional holes and so the oil techniques through 10 holes as a whole. This setup enables perfect landings from jumps, despite having a soft shock set-up. Made of specially-formulated composite product in order to make smooth action & durability. Well-proven molding procedure ensures perfect piston roundness after manufacturing, so that your pistons move perfectly in surprise figures for identical shock action in most four shocks.